Releasable base with four ferrules for crutch
Description
The broken line portions in
Claims
The ornamental design for a releasable base with four ferrules for crutch, as shown and described.
Referenced Cited
U.S. Patent Documents
D324946 | March 31, 1992 | Karten |
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6305659 | October 23, 2001 | Metelski |
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D618453 | June 29, 2010 | Jiang |
D627150 | November 16, 2010 | Chao |
D632476 | February 15, 2011 | Owens et al. |
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Patent History
Patent number: D668447
Type: Grant
Filed: Oct 17, 2011
Date of Patent: Oct 9, 2012
Inventor: Hsin-Chou Lai (Taichung)
Primary Examiner: T. Chase Nelson
Assistant Examiner: Ania Aman
Application Number: 29/404,116
Type: Grant
Filed: Oct 17, 2011
Date of Patent: Oct 9, 2012
Inventor: Hsin-Chou Lai (Taichung)
Primary Examiner: T. Chase Nelson
Assistant Examiner: Ania Aman
Application Number: 29/404,116
Classifications
Current U.S. Class:
D3/17